Title:
OBJECT RECOGNITION USING INCREMENTAL FEATURE EXTRACTION
Document Type and Number:
WIPO Patent Application WO/2012/016168
Kind Code:
A3
Abstract:
In one example, an apparatus includes a processor configured to extract a first set of one or more keypoints from a first set of blurred images of a first octave of a received image, calculate a first set of one or more descriptors for the first set of keypoints, receive a confidence value for a result produced by querying a feature descriptor database with the first set of descriptors, wherein the result comprises information describing an identity of an object in the received image, and extract a second set of one or more keypoints from a second set of blurred images of a second octave of the received image when the confidence value does not exceed a confidence threshold. In this manner, the processor may perform incremental feature descriptor extraction, which may improve computational efficiency of object recognition in digital images.
Inventors:
BAHETI PAWAN KUMAR (IN)
VADDADI SUNDEEP (US)
SWAMINATHAN ASHWIN (US)
REZNIK YURIY (US)
HAMSICI ONUR C (US)
CHARI MURALI RAMASWAMY (US)
HONG JOHN H (US)
LEE CHONG UK (US)
VADDADI SUNDEEP (US)
SWAMINATHAN ASHWIN (US)
REZNIK YURIY (US)
HAMSICI ONUR C (US)
CHARI MURALI RAMASWAMY (US)
HONG JOHN H (US)
LEE CHONG UK (US)
Application Number:
PCT/US2011/045942
Publication Date:
June 07, 2012
Filing Date:
July 29, 2011
Export Citation:
Assignee:
QUALCOMM INC (US)
BAHETI PAWAN KUMAR (IN)
VADDADI SUNDEEP (US)
SWAMINATHAN ASHWIN (US)
REZNIK YURIY (US)
HAMSICI ONUR C (US)
CHARI MURALI RAMASWAMY (US)
HONG JOHN H (US)
LEE CHONG UK (US)
BAHETI PAWAN KUMAR (IN)
VADDADI SUNDEEP (US)
SWAMINATHAN ASHWIN (US)
REZNIK YURIY (US)
HAMSICI ONUR C (US)
CHARI MURALI RAMASWAMY (US)
HONG JOHN H (US)
LEE CHONG UK (US)
International Classes:
G06K9/46; G06K9/68
Foreign References:
| US20070092143A1 | 2007-04-26 | |||
| US20080013836A1 | 2008-01-17 | |||
| US6711293B1 | 2004-03-23 | |||
| US20080192998A1 | 2008-08-14 |
Other References:
LEE S ET AL: "Familiarity based unified visual attention model for fast and robust object recognition", PATTERN RECOGNITION, ELSEVIER, GB, vol. 43, no. 3, 1 March 2010 (2010-03-01), pages 1116 - 1128, XP026783271, ISSN: 0031-3203, [retrieved on 20090811], DOI: 10.1016/J.PATCOG.2009.07.014
Attorney, Agent or Firm:
DAWLEY, Brian, R. (P.A.1625 Radio Drive, Suite 30, Woodbury MN, US)
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